+++ /dev/null
-/* PixelGrabber.java -- Java class for providing image data
- Copyright (C) 1999 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package java.awt.image;
-
-import java.awt.Image;
-import java.util.Hashtable;
-
-/**
- PixelGrabber is an ImageConsumer designed to extract a rectangular region of pixels
- from an Image
- */
-public class PixelGrabber implements ImageConsumer
-{
- int x, y, width, height, status, scansize, offset;
- ColorModel model = ColorModel.getRGBdefault();
- //int hints;
- //Hashtable props;
- int pixel_bufferi[];
- byte pixel_bufferb[];
- boolean grabbing;
- ImageProducer ip;
-
- /**
- * Create a PixelGrabber used to grab pixels from the specified Image
- * in the specified rectangle
- *
- * @param img the Image to grab pixels from
- * @param x the x coordinate of the rectangle
- * @param y the y coordinate of the rectangle
- * @param w the width of the rectangle
- * @param h the height of the rectangle
- * @param pixels the array of pixel values
- * @param offset the index of the first pixels in the <code>pixels</code> array
- * @param scansize the width to use in extracting pixels from the <code>pixels</code> array
- */
- public PixelGrabber(Image img, int x, int y, int w, int h,
- int pix[], int off, int scansize)
- {
- this( img.getSource(), x, y, w, h, pix, off, scansize );
- }
-
- /**
- * Create a PixelGrabber used to grab pixels from the specified ImageProducer
- * in the specified rectangle
- *
- * @param ip the ImageProducer to grab pixels from
- * @param x the x coordinate of the rectangle
- * @param y the y coordinate of the rectangle
- * @param w the width of the rectangle
- * @param h the height of the rectangle
- * @param pixels the array of pixel values
- * @param offset the index of the first pixels in the <code>pixels</code> array
- * @param scansize the width to use in extracting pixels from the <code>pixels</code> array
- */
- public PixelGrabber(ImageProducer ip, int x, int y, int w, int h,
- int pix[], int off, int scansize)
- {
- this.ip = ip;
- this.x = x;
- this.y = y;
- this.width = w;
- this.height = h;
- this.pixel_bufferi = pix;
- this.offset = off;
- this.scansize = scansize;
- pixel_bufferb = new byte[pix.length * 4];
- }
-
-
- /**
- * Create a PixelGrabber used to grab pixels from the specified Image
- * in the specified rectangle
- *
- * @param img the Image to grab pixels from
- * @param x the x coordinate of the rectangle
- * @param y the y coordinate of the rectangle
- * @param w the width of the rectangle
- * @param h the height of the rectangle
- * @param forceRGB true to force conversion to RGB
- */
- public PixelGrabber(Image img,
- int x, int y,
- int w, int h,
- boolean forceRGB)
- {
- //FIXME
- }
-
- /**
- Start Grabbing Pixels
- */
- public synchronized void startGrabbing()
- {
- if ( grabbing == false )
- {
- grabbing = true;
- ip.startProduction( this );
- }
- }
-
- /**
- Abort the grabbing of pixels
- */
- public synchronized void abortGrabbing()
- {
- if ( grabbing == true )
- {
- grabbing = false;
- ip.removeConsumer( this );
- }
- }
-
- /**
- Grab the Pixels.
-
- @return true if successful
-
- @throws InterruptedExcpetion if interrupted by another thread.
- */
- public boolean grabPixels() throws InterruptedException
- {
- return grabPixels(0);
- }
-
- /**
- Grab the Pixels and abort if it takes too long
-
- @return true if successful
-
- @throws InterruptedExcpetion if interrupted by another thread.
- or time runs out
- */
- public synchronized boolean grabPixels(long ms) throws InterruptedException
- {
- startGrabbing();
-
- if (ms < 0)
- return (status == ImageObserver.ALLBITS);
-
- wait(ms);
-
- if (status == ImageObserver.ALLBITS)
- return true;
- else
- return false;
- }
-
- /**
- Get the status of the pixel grabbing representing by ImageObserver flags
-
- @return the status
- */
- public synchronized int getStatus()
- {
- return status;
- }
-
- /**
- Return width of pixel region
-
- @return width of region
- */
- public synchronized int getWidth()
- {
- return width;
- }
-
- /**
- Return height of pixel region
-
- @return height of region
- */
- public synchronized int getHeight()
- {
- return height;
- }
-
- /**
- Returns the grabbed pixel buffer
-
- @return a byte or int array
- */
- public synchronized Object getPixels()
- {
- if( pixel_bufferi != null )
- return pixel_bufferi;
- return pixel_bufferb;
- }
-
- /**
- Get the ColorModel of the image
-
- @return the ColorModel
- */
- public synchronized ColorModel getColorModel()
- {
- return model;
- }
-
- /**
- * An <code>ImageProducer</code> indicates the size of the image
- * being produced using this method.
- *
- * @param width the width of the image
- * @param height the height of the image
- */
- public void setDimensions(int width, int height)
- {
- }
-
- /**
- * An <code>ImageProducer</code> can set a list of properties
- * associated with this image by using this method.
- *
- * @param props the list of properties associated with this image
- */
- public void setProperties(Hashtable props)
- {
- //this.props = props; //FIXME - DO WE NEED THIS
- }
-
- /**
- * This <code>ColorModel</code> should indicate the model used by
- * the majority of calls to <code>setPixels</code>. Each call to
- * <code>setPixels</code> could however indicate a different
- * <code>ColorModel</code>.
- *
- * @param model the color model to be used most often by setPixels
- * @see ColorModel
- */
- public void setColorModel(ColorModel model)
- {
- this.model = model;
- }
-
- /**
- * The <code>ImageProducer</code> should call this method with a
- * bit mask of hints from any of <code>RANDOMPIXELORDER</code>,
- * <code>TOPDOWNLEFTRIGHT</code>, <code>COMPLETESCANLINES</code>,
- * <code>SINGLEPASS</code>, <code>SINGLEFRAME</code>.
- *
- * @param flags a bit mask of hints
- */
- public void setHints(int flags)
- {
- //hints = flags; // FIXME - DO NOT KNOW WHAT TO DO WITH THE HINTS
- }
-
- /**
- * This function delivers a rectangle of pixels where any
- * pixel(m,n) is stored in the array as a <code>byte</code> at
- * index (n * scansize + m + offset).
- */
- public void setPixels(int x, int y, int w, int h,
- ColorModel model, byte[] pixels, int offset, int scansize)
- {
- //FIXME - I hate bytes
- int xp, yp;
- for( xp = x; xp < ( x + w); xp++ )
- for( yp = y; yp < (y + h); yp++ )
- if( xp >= this.x &&
- yp >= this.y &&
- xp <= ( this.x + this.width ) &&
- yp <= ( this.y + this.height ) ) {
- pixel_bufferb[(yp - this.y) * this.scansize + (xp - this.x) + this.offset] =
- pixels[ offset + yp * scansize + xp ];
- }
-
- }
-
- /**
- * This function delivers a rectangle of pixels where any
- * pixel(m,n) is stored in the array as an <code>int</code> at
- * index (n * scansize + m + offset).
- */
- public void setPixels(int x, int y, int w, int h,
- ColorModel model, int[] pixels, int offset, int scansize)
- {
- int xp, yp;
- for( xp = x; xp < ( x + w); xp++ )
- for( yp = y; yp < (y + h); yp++ )
- if( xp >= this.x &&
- yp >= this.y &&
- xp <= ( this.x + this.width ) &&
- yp <= ( this.y + this.height ) ) {
- pixel_bufferi[(yp - this.y) * this.scansize + (xp - this.x) + this.offset] =
- pixels[ offset + yp * scansize + xp ];
- }
- }
-
- /**
- * The <code>ImageProducer</code> calls this method to indicate a
- * single frame or the entire image is complete. The method is
- * also used to indicate an error in loading or producing the
- * image.
- */
- public synchronized void imageComplete(int status)
- {
- this.status = status;
- }
-
- /**
- @deprecated by getStatus
- */
- public synchronized int status()
- {
- return getStatus();
- }
-
-}
projects / msp430-gcc.git / blobdiff